Dictionary

sesquicentennial

noun ses·qui·cen·ten·ni·al \-sen-ˈte-nē-əl\

Definition of SESQUICENTENNIAL

:  a 150th anniversary or its celebration
sesquicentennial adjective
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First Known Use of SESQUICENTENNIAL

1880

Other Calendar Terms

antedate, estival, gloaming, luster

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